diff --git a/templates/csharp/tests/CustomerApi.Tests/CustomerApi.Tests.csproj b/templates/csharp/tests/CustomerApi.Tests/CustomerApi.Tests.csproj
index 17473a7..e725c1f 100644
--- a/templates/csharp/tests/CustomerApi.Tests/CustomerApi.Tests.csproj
+++ b/templates/csharp/tests/CustomerApi.Tests/CustomerApi.Tests.csproj
@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="7.0.0" />
+    <PackageReference Include="FluentAssertions" Version="8.10.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="NSubstitute" Version="5.3.0" />
diff --git a/templates/csharp/tests/CustomerApi.Tests/packages.lock.json b/templates/csharp/tests/CustomerApi.Tests/packages.lock.json
index a69ec4c..bd4a589 100644
--- a/templates/csharp/tests/CustomerApi.Tests/packages.lock.json
+++ b/templates/csharp/tests/CustomerApi.Tests/packages.lock.json
@@ -10,12 +10,9 @@
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@@ -395,70 +392,21 @@
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       "xunit.abstractions": {
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